<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:tns="http://schemas.datacontract.org/2004/07/WcfService2" elementFormDefault="qualified" targetNamespace="http://schemas.datacontract.org/2004/07/WcfService2" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:complexType name="PurchaseOrder">
    <xs:sequence>
      <xs:element minOccurs="0" name="_firstName" nillable="true" type="xs:string" />
      <xs:element minOccurs="0" name="_id" type="xs:int" />
      <xs:element minOccurs="0" name="_lastName" nillable="true" type="xs:string" />
      <xs:element minOccurs="0" name="_salary" type="xs:int" />
    </xs:sequence>
  </xs:complexType>
  <xs:element name="PurchaseOrder" nillable="true" type="tns:PurchaseOrder" />
  <xs:complexType name="Student">
    <xs:sequence>
      <xs:element minOccurs="0" name="AdultOrNot" nillable="true" type="xs:string" />
      <xs:element minOccurs="0" name="Age" type="xs:int" />
      <xs:element minOccurs="0" name="First_Name" nillable="true" type="xs:string" />
      <xs:element minOccurs="0" name="Last_Name" nillable="true" type="xs:string" />
      <xs:element minOccurs="0" name="Marks_Obtained" type="xs:int" />
      <xs:element minOccurs="0" name="Roll_Number" type="xs:int" />
    </xs:sequence>
  </xs:complexType>
  <xs:element name="Student" nillable="true" type="tns:Student" />
</xs:schema>